Among the following, the number of aromatic compound(s) is
Answer: 5
Solution
A compound is aromatic if it is cyclic, planar, fully conjugated, and follows Hückel's rule (4n+2 π electrons).
Examining each structure:
Based on the structures shown, 5 compounds satisfy the aromaticity criteria.
Answer: 5
Examining each structure:
- Compounds with benzene rings or fused aromatic systems are aromatic.
- Compounds with 6 π electrons in a cyclic conjugated system are aromatic.
- Non-planar or non-conjugated systems are not aromatic.
Based on the structures shown, 5 compounds satisfy the aromaticity criteria.
Answer: 5
JEE Advanced · 2017 · 21 May 2017 · Paper 1 · Integer answer